Home / 18,690.18-28,034.91-4,838.82

Finding the Fourth Proportional to 18,690.18, 28,034.91 and 4,838.82

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Solution

The fourth proportional to 18,690.18, 28,034.91 and 4,838.82 is: 7,258.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.18 : 28,034.91 = 4,838.82 : x
  2. Step 2: Convert to fraction form
    18,690.18/28,034.91 = 4,838.82/x
  3. Step 3: Cross multiply
    18,690.18x = 28,034.91 × 4,838.82
  4. Step 4: Simplify right side
    18,690.18x = 135,655,883.21
  5. Step 5: Solve for x
    x = 135,655,883.21/18,690.18
  6. Step 6: Final answer
    x = 7,258.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.